Hinge



Patented June 28, 1921.

HINGE.

APPLICATION FILED QCT. 19. I920.

P. R. LYDING.

INVENTOR. Peter R. Lydia BY CXM/ Z Jw v ATTORNEY PATENT OFFlCE.

PETER R. LYDING, OF SACRAMENTO, CALIFORNIA.

HINGE.

Specification of Letters Patent.

Patented June 28, 1921.

Application filed October 19, 1920. Serial No. 418,043.

To (ZZZ whom it may concern:

Be it known that I, PETER R. LYDING, a citizen of the United States, residing at Sacramento, in the county of Sacramento and State of California, have invented new and useful Improvements in Hinges, of which the following is a specification.

- This invention relates to a swinging door and particularly pertains to a hinge therefor.

It is the principal object of the present invention to provide a hinge structur for a swinging. door which will act to automatically close the door and hold it in a closed and easily movable position.

The present invention contemplates the use ofa pivot member secured to the lower corner of the door and, extending downwardly into a suitable mounting plate. A second pivot member is secured to the upper part of the door and at a point slightly distant from the edge of the door whereby swinging actionwill take place to cant the door when opened, a cam member being provided adjacent the lower pivot to force thedoor to its original closed position.

The invention is illustrated by way of we ample in the accompanying drawing in which i Figure l is a view in elevation showing a doorway within which a door is mounted upon a hinge structure with which the pres ent invention is concerned,

Fig. 2 is a view in plan showing the position of the door when opened,

Fig. 3 is an enlarged fragmentary view showing the lower mounting of the door,

Fig. 4 is a view in section and elevation through the structure shown in Fig. 3 and as viewed on the lines H.

Referring more particularly to the drawings, 10 indicates a door frame within which is mounted a door 11. This door is intended to swing horizontally or substantially so as supported by a lower hinge pin 12 and an upper hinge pin 13. The lower hinge pin 12 extends downwardly from one corner of the door and adjacent the vertical edge thereof. The upper hinge pin 13 is disposed some distance from the edge of the door carrying the hinge pin 12 and is secured along the top edge thereof. A plate 14: is secured to the top of the door frame for receiving the vertical pin 13. A plate 15 is secured to the threshold of the door to receive the lower pin 12. This plate is more clearly shown in Fig. 4. where it will be seen to besubstantially U-shaped in section, thereby presenting a semi-circular top portion 16. This crown is provided as a seat for a cam plate 17 which is secured to the bottom of the door 11. The cam plate is also shown in Fig. 4, where it will be seen to possess an arcuate P01111011 18 substantially conforming to the crown 16 of the plate 15 and diverging-side members 19 and 20 extending downwardly and outwardly from the opposite sides of the plate 15. By reference to Fig. 3 it will be noted that in elevation the side members 19 and 20 are wedge-shaped, having their bases substantially flush with the vertical rear edge of the door. This construction insures that the door will be bodily raised and lowered as it swings, thus necessitating that the doorway shall be of larger dimensions than the door mounted therein.

In-operation of the present invention the door is set up upon its mountings, as shown in Flg. 1. When the door is swung in either direction through the doorway it will be swung on an axis extending from the mountingsof the pins 12 and 13. This will be at an angle to the vertical pin and will cause the door to assume the canted, position indicated in Fig. 2.. As the swinging, action takes place one of the extensions 19 or 20 of the cam plate 17 will ride up on the crown 1.6 of the plate 15, thereby causing the door to be lifted. When the door is released its weight and its canted position will act to force the cam plate 17 down upon the plate 15 and cause the arcuate portion 18 to assume its original seated position upon the crown 16 of the plate 15. The weight of the door will tend to hold it in this seated and closed position relative to the doorway.

It will thus be seen that the hinge structure here disclosed, while simple in construction, yet is suitable for use in connection with poultry houses and other inclosures where it is desirable to automatically close a doorway, the operation being brought about without material change in the construction of the door and by an inexpensive hinge mounting.

While I have shown the preferred form of my invention it will be understood that various changes in the combination, construction and arrangement of parts may be made by those skilled in the art without departing from the spirit of my invention as disclosed in the appended claims,

Having thus described my invention, what I claim and desire to secure by Letters'Patcut isi l. A pivotal door mounting comprising a lower hinge pin disposed vertically at one of the lower corners of the door, an upper hinge pin extending vertically from the top of the door' and spaced a distance from the edge of the door adjacent which the'lower pin is positioned, and mountings-in the top and lower frames of the door for receiving said hinge pins.

2. A pivotal door mounting comprising a lower hinge pin disposed vertically at one of the lower corners of the door, an upper hingepin extending vertically from the top of the door and spaced a distance from the edge ofthe door adjacent which the lower pin is positioned, mountings in the top and lower frames of the door for receiving said hinge pins and means automatically operated by the weight of the door to restore it to its original closed position after having been opened. e

3. A hinge mounting for doors comprising a vertically extending upper hinge pin, a vertically extending lower hinge pin, a crown plate in which the lower hinge pin projects and a cam plate carried by the door and acting in combination with the crown plate to restore the door to its closed position when opened.

4. VA hinge monntlngfor doors comprising a vertical pin extending upwardly from the top ofthe door and pivotally seated within the door fra1ne,'a' vertical pin extending downwardly from the bottom of the door and pivotally seated in the threshold of the door, a horizontally extending convex memof the door when closed and a cam plate carried by the bottom of the door and having a a concave portion normally seating on the convex member and having outwardly and downwardly extending wedgeshaped flanges by which the door may be restored to its closed position when opened. 7

5. A hinge member comprising a' -fioor plate having a convex crown extending horizontally and anlopening in one end thereof, a vertical hinge pin adapted to be pivotally mounted within said opening and a cam plate formed with a central concave portion normally seating on said crown and having outwardly and downwardly flaring side flanges triangular in elevation and with their base portions standing vertical and in substantial alinernent withthe pin, and a hinge pin fixed in the top of the door and on a line diagonal to the floor pin.

6. A, door structure comprising a door member adapted to normally stand in an opening of sufliciently larger dimensions than the door to cause a space to occur between the door frame and the door, a hinge pin carried by one of the lower corners of the door and extending downwardly into a pivotal mounting and a hinge pinmounted upon and projecting upwardly from theupper edge of the door at a distance from the vertical edge of the door carrying the down- Wardly'projecting pin.

, PETER R. LYDING. I 

